baber/WOPTO huggingface dataset:
Patent GB-1248971-A (GB)
Title: Preparation of cyanogen chloride
IPC: C01C3/00
Filed: 1968-10-04
Abstract: 1,248,971. Cyanogen chloride. AGRIPAT S.A. 4 Oct., 1968 [5 Oct., 1967], No. 47169/68. Heading C1A. Cyanogen chloride and HCl are produced by reacting HCN and Cl 2  in a non-aqueous polar organic liquid, in which at least one reactant is soluble to an extent of at least 2% by weight, which is inert to reactants and products and in which HCl is not soluble in any substantial amount. Suitable organic liquids are acid chlorides and acid anhydrides, e.g. acetyl chloride and acetic anhydride, particularly chlorinated derivatives thereof, e.g. trichloroacetyl chloride and trichloroacetic anhydride; trichloroacetonitrile; chlorinated benzenes, e.g. mono- or tri-chlorobenzene or chloronitrobenzene; trichloronitromethane. Up to 1 % by weight stearyl trimethylammonium chloride may be included in the chlorobenzenes. Saturated solutions of HCN and Cl 2  may be mixed while bubbling Cl 2  through the liquid. Cl 2  and HCN may be scrubbed from the HCl given off.
Patent GB-1483483-A (GB)
Title: Process for producing calcium silicate insulation
IPC: C04B28/22
Filed: 1974-10-31
Abstract: 1483483 Synthetic xonotlite KANSAI THERMAL INSULATING INDUSTRY CO Ltd 31 Oct 1974 [31 May 1974] 47267/74 Heading C1A Synthetic calcium silicate as xonotlite having a bulk specific gravity of 0À1 to 0À2 g./cm.<SP>3</SP> is prepared from very finely scattered ashes composed primarily of finely divided amorphous silica, lime raw materials and water by stirring and heating the three materials together to form a gel, gently kneading the gel to produce a viscoelastic material, pouring the viscoelastic material into a mould and treating the mould and contents to saturated steam to form xonotlite crystals and then subjecting the crystals to super-heated steam to effect growth and drying of the crystals. Preferably the scattered ashes consist of 85 to 95% by weight of amorphous silica (the remainder being metallic oxides), the silica having a mean grain size of 0À1 Ám. The kneading step may be carried out under superheated steam to adjust the water content of the gel and the resulting viscoelastic material. Apparatus suitable for carrying out the present process is shown in Fig. 1 in which heated water (50-70 C.) from 15 is supplied to tank 16 along with quick lime from 14, the resulting slaked lime slurry at 90 to 100 C. is led to reaction tank 17 and stirred there with hot water via 3 and scattered ashes from 12. The resulting gel is fed to the rotary kneader 19b via line 6, the kneader comprising a cylindrical, tightly sealed vessel, 19a, inclined, supported and rotated on rollers 19c. The viscoelastic material is discharged via line 7 and treated in an autoclave 20 containing moulds 21; line 9 supplies saturated steam to complete the formation of xonotlite crystals.
Patent GB-1187229-A (GB)
Title: Improvements in or relating to Piezoelectric Ceramics
IPC: C04B35/46
Filed: 1967-10-18
Abstract: 1,187,229. Piezoelectric ceramics. NIPPON ELECTRIC CO. Ltd. 18 Oct., 1967 [18 Oct., 1966; 29 Dec., 1966],. No, 47393/67. Heading G1J. A piezoelectric ceramic consists of a composition PbuMv(ZrxTiySnz)O3 where x = 0-0À90; y = 0À10-0À60; z = 0-0À65, x+y+z = 1; u =0À75-1À00; v = 0-0À25; u+v = 1 and M is at least one of Ba, Sr and Ca, together with 0À03-0À70% b.w. Ce2O3 and either 0À05-1À0% Sb2O3 or 0À02-1À0% WO3.
Patent GB-1128266-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02B3/06
Filed: 1966-10-21
Abstract: 1,128,266. Valve gear. MASCHINENFABRIK AUGSBURG-NURNBERG A.G. Oct. 21, 1966 [Nov. 17, 1965], No.47434/66. Heading F1B. In a four stroke I.C. engine an additional inlet valve 7, Fig.2 opens into a combustion chamber (5) Fig. 1 (not shown) of the piston when the latter is in the t.d.c. region, the additional inlet valve being opened and closed by actuating means at an instant in the engine cycle which is different from the instant of opening or closing of the other inlet valves or valves 1 to increase the effective valve overlap or to increase the effective duration of inlet valve opening. The actuating means comprises a push rod 13, Fig. 4 acting through a rocker 14 on a pressure plate 17 bearing on all three valves 1, 7 so that the point of connection is nearest valve 7. Movement of the rocker and pressure plate causes valve 7 to be opened until nose 19 engages stop 20 so that further movement causes the valves 1 to be opened with the valve 7 remaining open. Alternatively valve 7 may be separately actuated e.g. hydraulically. In supercharged engines valve 7 opens 20 degrees - 30 degrees before t.d.c. and may be opened twice in each cycle. The inlet ducts may be separate or common and shaped to assist swirl. The inlet valves may have fins to assist swirl. The additional inlet valve may form part of a coaxial arrangement of inlet and exhaust valve. In another embodiment a spring-loaded push rod 27, Fig.7 mounted on the exhaust rocker lever (21), Fig. 6 (not shown) causes downward movement of lever 25. Simultaneously a pawl 29 is moved anti-clockwise by spring 28 so that its nose engages roller 30 to arrest lever 25 with the valve 7 open when the exhaust valve rocker (21) moves in the closing direction. A roller 31 on the inlet rocker lever (14) then engages the pawl 29 to move it clockwise against springs 28 so that lever 25 moves to its datum position and valve 7 is closed.
Patent GB-1162039-A (GB)
Title: Method of Applying Noxious Cleaning Chemicals
IPC: C11D7/08
Filed: 1967-10-18
Abstract: 1,162,039. Method of applying noxious cleaning chemicals. W. R. GRACE & CO. 18 Oct., 1967 [17 Nov., 1966], No. 47506/67. Heading C5D. [Also in Division C7] A process for cleaning an open surface with noxious cleaning compositions containing eye, nose and skin irritants, comprising mixing a foamable cleaning composition containing noxious chemicals which may be alkalis, mineral acids, sulphamic acid or strongly basic amines, with at least 90 volume per cent of a gas and applying the resultant foam to the open surface to be cleaned, and rinsing the surface to remove the residual foamed cleaning composition.
Patent GB-1437236-A (GB)
Title: Blades for axial flow fans compressors or supercharger
IPC: F04D29/38
Filed: 1973-10-11
Abstract: 1437236 Turbomachine blades KOMBINAT LUFT-UND KALTETECHNIK VEB 11 Oct 1973 [12 Oct 1972] 47509/73 Heading F1T A blade for an axial-flow fan, compressor or supercharger is formed from a hard foam core I having incisions 2, 2', a slot 3 and a hole 3' where extra reinforcement is required, and enveloped in a reinforcing web of fabric 11, and is then placed in a mould into which a resin is allowed to flow to completely impregnate the fabric web. As shown, a web 11 is wrapped to cover the convex side of the blade continuously and passed through slots 2, 2' to the concave side. Reinforcing webs 12, 12' are then passed through the slot 3 and hole 3'. As further web 4 is then wrapped around the core to cover the concave side continuously and flaps 5 to 10 folded over the core edges to overlap and cover completely the convex face of the blade.
Patent GB-1042460-A (GB)
Title: An improved method of evaporating caustic
IPC: C23F11/06
Filed: 1963-12-03
Abstract: Corrosion of a metal vessel during evaporation of an aqueous solution of NaOH or KOH is prevented by adding formic acid, oxalic acid, or their salts, to the solution.  Preferably .005-.05 of the Na or K salt (based on evaporated hydroxide) is used.ALSO:In a process for evaporating aqueous solutions of NaOH or KOH in a metal vessel, formic or oxalic acid or their salts or mixtures thereof are added to prevent corrosion of the metal. Preferably 0.005-0.05% of the Na or K salt (based on evaporated hydroxide) is used, as a solution.ALSO:In a process for evaporating aqueous solutions of NaOH or KOH in a metal vessel, formic or oxalic acid or their salts or mixtures thereof are added to prevent corrosion of the metal. Preferably .005-.05% of the Na or K salt (based on evaporated hydroxide) is used, as a solution.
Patent GB-1113460-A (GB)
Title: Temperature-measuring apparatus
IPC: G01K1/12
Filed: 1965-11-10
Abstract: A thermocouple is disposed inside the closed end of a tubular sheath made of sintered ceramic refractory material comprising by weight between 3% and 15% of TiO2 between 0.8% and 25% of Cr2O3 between 40% and 95% of MgO the sum of these constituents being at least 75%, and not more than 15% of Fe2O3, the remainder if any being less than 7.5% of Al2O3, less than 2% of SiO2, less than 1% of CaO, the material having a homogeneous mineralogy on a macroscopic scale and microscopically comprising an intimate, intergrown mixture of periclase crystals and mixed magnesium spinel crystals, there being substantial direct mineralogical bonding between the crystals and at least a major portion of the periclase crystals containing fine exsolved magnesium-spinel crystals and discontinuous microcracks.  A refractory buffer layer comprising at least 90% by weight of MgO fills the space between the sheath and the thermocouple.
Patent GB-1494088-A (GB)
Title: Reciprocating machines
IPC: F03C1/32
Filed: 1974-11-05
Abstract: 1494088 Swash plate mechanism M G H GIRODIN 5 Nov 1974 [9 Nov 1973] 47754/74 Heading P2K [Also in Division F1] A machine, e.g. an I.C. engine, a pump or compressor, has a cylinder block 1 with cylinders 2 parallel to an axis 31, each cylinder 2 having a piston 3 linked via a connecting rod 6 and ball joints 5, 9 to a swash plate assembly 4. The swash plate assembly 4 is frustoconical with a shell 10, 11 surrounding a stationary ball 7 which acts as a pivot. The rotation of the swash plate assembly upper end 4a about axis 31 is restricted by intermeshing crown gears 25, 26 whilst the lower end 4b is journalled in a plane bearing 14 in a crank 15. The crank is counterweighted (15c) and rotates about axis 31. A shaft 19, journalled in a plane bearing 16, and in a thrust bearing 19a, is connected to the crank 15 and to a clutch plate 23. Coolant spaces 32 are formed around each cylinder. Rotary movement of the shaft 19 is converted into reciprocating piston movement or vice versa. In an embodiment (not shown), the ball (7) is formed on the swash plate assembly (4) whilst the cylinder block (1) carries a surrounding shell (10, 11).
Patent GB-1160373-A (GB)
Title: Improvements in or relating to Fluid-Pressure Motors.
Inventor: PANIGATI PIER LUIGI
IPC: F15B15/22
Filed: 1966-10-26
Abstract: 1,160,373. Fluid-pressure motors; cushioning. P.L. PANIGATI. Oct.26, 1966 [Nov. 2, 1965], No. 47944/66. Heading F1P. A fluid-pressure motor includes a cylinder 2 containing a piston 5 attached to a shaft 4 that extends through a cylinder-head 1, which together with the shaft defines an annular passage 7 communicating with a port 8 for working fluid, e.g. compressed air, cushioning for the piston being effected by working fluid trapped between an annular portion 5b of the piston and a flexible diaphragm 10 when the piston approaches the cylinder-head. The diaphragm is attached to a sleeve 9 on the cylinder-head and abuts a porous annular-member 11 that serves to restrict the rate of flow of working fluid through at least one small hole 10c in the diaphragm into the passage 7 by way of an annular passage 12 and a plurality of holes 13 while the piston is approaching the end of its stroke in close proximity with the cylinder-head. When the flow of working fluid in the passage 7 is reversed, the diaphragm is deflected away from the number 11, Fig. 3 (not shown), so as to permit a relatively large rate of flow of working fluid therethrough and augment the thrust on the piston at the commencement of its return stroke. The sleeve 9 is screwthreaded to allow axial adjustment of the position of the diaphragm and the porous member and thereby vary the cushioning effect. A plurality of grooves 9a are formed in the outermost surface of the sleeve 9 to facilitate rotation thereof by a suitable tool inserted therein through a slot 15 in the cylinder. Materials of which the diaphragm, the porous member and the portion 5b of the piston may be made are synthetic or natural rubber, sintered bronze and a natural or synthetic polymer, respectively.
Patent GB-1122018-A (GB)
Title: Removing butadiene and/or acetylenes from hydrocarbon mixtures
IPC: C07C7/163
Filed: 1965-11-12
Abstract: Hydrocarbon mixtures containing principally butenes and/or butadiene are purified to remove dienes and/or acetylenes by dissolving hydrogen in the liquid mixture and passing the solution in a non-upward flow over a hydrogenation catalyst in a reaction chamber maintained full of liquid.  The catalyst may be a supported Group Ib or VIII metal optionally containing chromium. Hydrogenation is effected at 0-100 DEG  C. with sufficient pressure up to 100 atmospheres to maintain the liquid phase with a throughput of 5-100 kg./litre of catalyst/hr. Hydrogen is dissolved by spraying the liquid into or trickling the liquid down through a hydrogen atmosphere or by pasing hydrogen into the liquid.
Patent GB-1015390-A (GB)
Title: Gasholder
IPC: F17B1/013
Filed: 1964-11-26
Abstract: 1,015,390. Gasholders. ISHIKAWAJIMA HARIMA JUKOGYO KABUSHIKI KAISHA. Nov. 26, 1964 [Nov. 26, 1963], No. 48069/64. Heading F4X. A gasholder comprises a casing 1 and a piston 2 kept substantially level by three or more wire ropes 5 attached to the piston at points equispaced about its periphery, the other end of each rope being attached to a drum 7 mounted on a shaft 10 having a bevel gear 11 adjacent the vertical central axis of the casing. Each gear 11 meshes with a gear 12 driven by a motor 13 such that the ropes are taut and equal lengths of rope are withdrawn from or taken in by each drum. The drums 7 may be mounted in the roof truss or on the piston, and the ropes may be kept taut by a drum and weight or by a spiral spring. The piston is also provided with guide rollers 3 and sealing means 4.
Patent GB-1200726-A (GB)
Title: Improvements in or relating to remote meter registering arrangements
IPC: G06M1/10
Filed: 1966-10-26
Abstract: 1,200,726. Counters; electric selective signalling. SANGAMO WESTON Ltd. (Sangamo Electric Co.). 24 Oct., 1967 [26 Oct., 1966], No. 48136/66. Headings G4D and G4H. A remote registering arrangement for a meter comprises an electric signalling device associated with the lowest denomination of the meter to pass current in successively opposite directions through a solenoid to advance the lowest wheel of the register. The spindle 14 of the lowest meter denomination carries a pair of off-set five-toothed metal wheels 102, 104 separated by a ten-toothed insulating wheel 106. The metal wheels are bridged by a rectifier 52, so that as the assembly rotates contacts 76, 78 successively pass current from the secondary 88 of a transformer through a solenoid 62 first in one direction and then the other, interspaced by points at which the contacts are in engagement with the insulating wheel only. The polepieces 64, 66 coact with permanent magnets on a disc 60 and are spaced 1¢ pole spans apart. The polepiece 64 is closer to the disc to ensure the drive. In a modification (Fig. 9, not shown) the units wheel of the meter has two conductive segments connected by a rectifier. The disc 60 of the register then drives the units wheel through appropriate gears. The units wheel of the meter, Fig. 10, may have a cam 242 which controls a switch 272 and two rectifiers 252, 252<SP>1</SP> or a double switch (Fig. 11, not shown) and one rectifier.
Patent GB-1030329-A (GB)
Title: Central lock for furniture comprising a plurality of drawers
IPC: E05B65/462
Filed: 1963-12-06
Abstract: 1,030,329. Multiple fastenings; latches; clamps. W. WILLACH and O. WILLACH [trading as HUWIL-WERKE HUGO WILLACH & SOHNE]. Dec. 6, 1963 [Dec. 7, 1962], No. 48380/63. Headings E2A and E2B. A lock for furniture provided with a plurality of drawers arranged one above another, comprises a locking bolt 21, Fig. 1 adapted to be arranged inside the furniture and extending transversely to the direction of movement of the drawers and juxtaposed to them, and locking lugs 22 projecting substantially perpendicularly from the bolt and adapted in the locked position to engage in corresponding grooves or slots in the drawers in their closed position, the lugs being adjustable in positions along the length of the bolt. As shown the lugs are screwed into tapped holes provided along the locking bolt 21. In another arrangement, Figs. 3 and 4 (not shown) the locking bolt is slotted and the lugs are secured by flat headed screws from the rear. In a further arrangement, Figs. 5 and 6 (not shown) the locking bolt is provided with a T-section rib which is engaged by a sliding shoe having a tapped hole in which a threaded end of the lug is engaged. In the arrangement according to Figs. 7-9 (not shown), the locking bolt is of flattened C-section in which is slidably engaged a plate having a tapped hole for the lug. The plate may be of rhomboidal form. In all arrangements, the locking bolt is operated by a key-actuated cylinder lock 20. In arrangements according to Figs. 10-16 (not shown) the locking bolt is in two parts; a flat short part incorporated in the cylinder lock 20 and a longer part carrying the lugs 22. In the arrangement according to Figs. 10 and 11, both parts are flat and are coupled together by a tongue and slot formation; in the arrangement according to Figs. 12 to 16 the longer part, of C-section is formed with a pressed-in boss which engages a hole on the shorter part Figs. 12 and 13; in Figs. 14 and 15, the coupling is effected by a spring tongue; and in Fig. 16 the shorter part is split and is expanded within the C-section by a screw. In the arrangement according to Fig. 17 (not shown) the lug 22 is provided with a tapped through-hole for engagement by extension pieces having threaded ends and tapped sockets.
Patent GB-1536968-A (GB)
Title: Electromagnetic holding or release device
IPC: H01H71/32
Filed: 1976-11-19
Abstract: 1536968 Magnetic switches FELTEN & GUILLEAUME 19 Nov 1976 [2 Dec 1975] 48429/76 Heading H1N A holding electromagnet similar to that of Specification 1,232,725 has its parallel spaced laminations 4, 5 formed with sideways projecting aligned feet 4a, 5a respectively which act as pole members for engagement by complete effective surface area of the permanent magnet 1. The magnet is held by arm 11 in a recess in a spring member 8 having projections 10 engaged over the feet 4a, 5a and an extension 9 on which the electromagnet armature is rockable.
Patent GB-1400802-A (GB)
Title: Wheel speed sensors for vehicle adaptive braking systems
IPC: G01P3/488
Filed: 1972-06-21
Abstract: 1400802 Measuring angular velocity electrically BENDIX CORP 21 June 1972 [2 July 1971] 48738/74 Divided out of 1400801 Heading G1N [Also in Division F2] A tachogenerator is incorporated in the differential of a motor vehicle and comprises a rotor formed by teeth on a flange 66 of the differential cage, and a stator formed by a coil and magnet assembly 146 mounted in an aperture 140 in the differential housing 110 adjacent the projections.
Patent GB-960759-A (GB)
Title: Axial floor fan means for the transport of dust-laden gases
IPC: F04D23/00
Filed: 1962-12-28
Abstract: 960,759. Axial-flow fans. SVENSKA FLAKTFABRIKEN. AB. Dec. 28, 1962 [Dec. 29, 1961], No. 48956/62. Heading F1C. In an axial-flow fan for conveying dust-laden gases, having rotatably adjustable fan blades 4 each provided with a spindle 6 journalled in the fan hub 5 and secured in a blade base plate 7 countersunk in the hub 5, the recesses in the hub for the base plates are formed to provide a circular slot 14 between each base plate and the hub body, and means are provided for supplying the slot 14 if desired with scavenging air which may be preheated. The scavenging air prevents the dust carried by the main flow from settling on the hub periphery and, if preheated, also prevents moisture in the main stream from condensing on the hub 5. The scavenging air, corresponding for example, to 1-2% of the main flow carried by the fan 1, may be supplied by an auxiliary fan 19 which discharges into a conduit 18 containing a heater 20, a filter or other air cleaner 21 and a throttle 22. Alternatively, the fan 19 may be omitted and the suction of the fan 1 utilized. The conduit 18 supplies the scavenging air to a pressure chamber 16 formed, at the admission side of the fan 1, between the hub 5 and a cap 7. The pressure chamber 16 directs the scavenging air through bores 15 to the slots 14. In an alternative embodiment (not shown) the fan hub has an enclosed pressure chamber which supplies the scavenging air to the slots 14 through hollow blade spindles. Thus, if cold scavenging air is used, it will cool the blade spindles and bushings.
Patent GB-1532626-A (GB)
Title: Moulding of filled synthetic plastics moulding compositions
IPC: B29C48/29
Filed: 1974-11-12
Abstract: 1532626 Injecting filled resin articles BRITISH INDUSTRIAL PLASTICS Ltd 7 Nov 1975 [12 Nov 1974] Heading B5A Filled resin articles are made by injection moulding either a non-homogeneous mixture of dry amino-formaldehyde material with a filler or separate charges of the dry material and filler using a reciprocating screw injection device. The screw is effective to render the components of the working material into a homogeneous blend and the prior art necessity of forming a homogeneous blend before feeding to the injection device is obviated. The filler may be powdered, for example powdered cellulose, woodflour, talc, chalk or powdered glass or may be fibrous for example asbestos, carbon, glass or cellulose fibres. Preferred resins are methylated urea or melamine, alkylated derivatives of them, or urea, or melamine formaldehyde. Mixtures of these with unsaturated polyester resins can be used.
Patent GB-1440137-A (GB)
Title: Device for controlling the firing current of a quick-firing weapon
IPC: F41A19/64
Filed: 1973-11-22
Abstract: 1440137 Automatic control INDUSTRIE WERKE KARLSRUHE AUGSBERG AG 22 Oct 1973 [4 Jan 1973] 49059/73 Heading G3N The firing current of a blow-back operated, electrically fired quick-firing mechanism, comprising a transmitter signalling the closed position of a slider of the weapon, is provided by a device logically responsive to control signals derived from the transmitter signal and from a firing current control pulse through a time delay element. As shown, a blow-back operated breechmechanism, having breech-block contacts 20, 22 an actuating control column trigger 48 and a manual charge-switch 34 are connected to flipflops 56, 58, 60, 62, respectively, of a device determining an electrical firing pulse for a shotcartridge from a power amplifier 88, or a pulse from a power amplifier 156 to fire a charging cartridge. Triggering from a speed allowance computer, not shown, can be effected at an input 36. A first shot is fired by the output of flip-flop 60 being applied through a differentiating network 94 to trigger a monostable flip-flop 98, and, in turn, a flip-flop 84 controlling the amplifier 88. The firing of the shot opens contacts 20, 22 and, after re-loading, the neat shot is triggered automatically by a bi-stable flip-flop 112 which is set after each shot, when and only when contact 20 has been opened and then has closed again. The pre-selection of the rate of firing is determined by a switch 128 determining the setting of a bi-stable flip-flop 114. The outputs of flip-flops 112, 114 through NAND-gates 96, 138 control the monostable flip-flops 98, 84 to initiate a firing pulse from the amplifier 88. When a shot does not fire, a monostable flipflop 140, set by flip-flop 98, returns to a stable state after a safety period and triggers, through a differentiating network 142, a monostable flipflop 50 which initiates a pulse from a flip-flop 150 to fire a charging cartridge by the output of the amplifier 156.